11169009 has 16 divisors (see below), whose sum is σ = 16754240. Its totient is φ = 7444548.

The previous prime is 11169001. The next prime is 11169013. The reversal of 11169009 is 90096111.

It is not a de Polignac number, because 11169009 - 2³ = 11169001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11169001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367 + ... + 4740.

It is an arithmetic number, because the mean of its divisors is an integer number (1047140).

Almost surely, 2^11169009 is an apocalyptic number.

It is an amenable number.

11169009 is a deficient number, since it is larger than the sum of its proper divisors (5585231).

11169009 is an frugal number, since it uses more digits than its factorization.

11169009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128 (or 5110 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 11169009 is about 3342.0067324887. The cubic root of 11169009 is about 223.5312329668.

The spelling of 11169009 in words is "eleven million, one hundred sixty-nine thousand, nine".